/* ==========================================================================
   CSS Variables & Reset
   ========================================================================== */
:root {
  --bg-color: #ffffff;
  --surface-color: #f9f9fb;
  --text-primary: #1a1a1a;
  --text-secondary: #71717a;
  --text-tertiary: #a1a1aa;
  
  --primary-color: #1a1a1a;
  --white: #ffffff;
  --border-color: #f0f0f0;

  --nav-height: 64px;
  --header-height: 56px;
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: #f2f2f5; /* Desktop backdrop */
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   Base Layout
   ========================================================================== */
.app-container {
  max-width: 480px;
  margin: 0 auto;
  background-color: var(--bg-color);
  min-height: 100vh;
  position: relative;
  box-shadow: 0 0 40px rgba(0,0,0,0.05);
}

.main-content {
  padding-top: var(--header-height);
  padding-bottom: auto; /* padding managed via bottom-spacer */
}

.section-padding {
  padding: var(--spacing-lg) var(--spacing-md);
}

.bottom-spacer {
  height: calc(var(--nav-height) + env(safe-area-inset-bottom, 20px) + var(--spacing-md));
}

/* ==========================================================================
   Typography
   ========================================================================== */
.logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.01em;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.top-header {
  position: fixed;
  top: 0;
  width: 100%;
  max-width: 480px;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-md);
  z-index: 40;
}

.bottom-tab-bar {
  position: fixed;
  bottom: 0;
  width: 100%;
  max-width: 480px;
  height: calc(var(--nav-height) + env(safe-area-inset-bottom, 0px));
  background-color: var(--white);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  z-index: 50;
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  color: var(--text-tertiary);
  text-decoration: none;
  font-size: 0.65rem;
  font-weight: 500;
  gap: 4px;
  cursor: pointer;
  transition: color 0.2s ease;
}

.tab-item.active {
  color: var(--primary-color);
}

/* ==========================================================================
   Components: Category Chips
   ========================================================================== */
.category-chip-bar {
  display: flex;
  gap: var(--spacing-sm);
  overflow-x: auto;
  padding: var(--spacing-md);
  scrollbar-width: none; /* Firefox */
}

.category-chip-bar::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}

.category-chip {
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  background-color: var(--surface-color);
  color: var(--text-secondary);
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.category-chip.active {
  background-color: var(--primary-color);
  color: var(--white);
}

/* ==========================================================================
   Components: Horizontal Scroller
   ========================================================================== */
.horizontal-scroller {
  display: flex;
  gap: var(--spacing-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: var(--spacing-md);
  scrollbar-width: none;
}
.horizontal-scroller::-webkit-scrollbar {
  display: none;
}

.horizontal-item {
  scroll-snap-align: start;
  flex-shrink: 0;
}

/* ==========================================================================
   Components: Book Card (Compact for Horizontal Row)
   ========================================================================== */
.compact-book-card {
  width: 140px;
  cursor: pointer;
}

.cover-wrapper {
  width: 100%;
  aspect-ratio: 2 / 3;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  background-color: var(--surface-color);
  margin-bottom: var(--spacing-sm);
  position: relative;
  border: 1px solid rgba(0,0,0,0.03);
}

.cover-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.book-title {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 2px;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-author {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.book-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
}

.person-avatar-mini {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  object-fit: cover;
}

.person-name-mini {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100px;
}

/* ==========================================================================
   Components: Person Circle Card
   ========================================================================== */
.person-circle-card {
  width: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.avatar-large {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  background-color: var(--surface-color);
}

.person-name-center {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  line-height: 1.2;
}

.person-domain {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  text-align: center;
}

/* ==========================================================================
   Components: Masonry Grid & Main Book Card
   ========================================================================== */
.masonry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  align-items: start;
}

.masonry-card {
  display: flex;
  flex-direction: column;
  cursor: pointer;
  margin-bottom: var(--spacing-lg);
}

.masonry-card .cover-wrapper {
  /* Variable height wrapper depends on the image. In pure CSS masonry with columns, 
     we use dynamic image aspect ratios. For grid, we just let it take intrinsic height or fix it.
     To achieve true masonry, we will use JS or CSS columns. 
     Using grid for simple 2 column, varying heights will stretch rows unless we use 'align-items: start'.
  */
  height: auto;
  aspect-ratio: auto; /* Let image define height based on width */
}

/* Icon Button (Bookmark) */
.bookmark-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: rgba(30, 30, 30, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  cursor: pointer;
  transition: background-color 0.2s ease;
  z-index: 10;
}

.bookmark-btn:hover, .bookmark-btn:active {
  background-color: rgba(30, 30, 30, 0.7);
}

.bookmark-btn .material-symbols-outlined {
  font-size: 18px;
}

/* ==========================================================================
   Modal
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 1;
  transition: opacity 0.2s ease;
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-content {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  width: 80%;
  max-width: 320px;
  text-align: center;
  transform: translateY(0);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.hidden .modal-content {
  transform: translateY(20px);
}

.modal-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.modal-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  gap: 12px;
}

.modal-actions button {
  flex: 1;
  padding: 12px 0;
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
}

.btn-cancel {
  background-color: var(--surface-color);
  color: var(--text-secondary);
}

.btn-confirm {
  background-color: var(--primary-color);
  color: var(--white);
}

/* ==========================================================================
   Book Detail Page Styles
   ========================================================================== */

/* Detail Top Bar */
.detail-top-bar {
  position: fixed;
  top: 0;
  width: 100%;
  max-width: 480px;
  height: var(--header-height);
  background-color: transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-md);
  z-index: 40;
}
.detail-top-bar.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
}
.nav-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: white;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

/* Hero Section */
.book-hero {
  padding: calc(var(--header-height) + var(--spacing-lg)) var(--spacing-md) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.hero-cover-wrapper {
  width: 160px;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 12px 24px rgba(0,0,0,0.1);
  margin-bottom: var(--spacing-lg);
  position: relative;
}
.hero-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.hero-original-title {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-bottom: 2px;
}
.hero-author {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 16px;
}
.hero-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 90%;
}

/* Meta Card Section */
.book-meta-section {
  padding: 0 var(--spacing-md) var(--spacing-lg);
}
.meta-card {
  background-color: var(--surface-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  row-gap: 20px;
  column-gap: 16px;
}
.meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.meta-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}
.meta-value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Action Bar */
.detail-action-bar {
  padding: 0 var(--spacing-md) var(--spacing-lg);
  display: flex;
  gap: 12px;
}
.action-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 0;
  border-radius: var(--border-radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  background-color: var(--surface-color);
  color: var(--text-primary);
  transition: opacity 0.2s;
}
.action-btn:active {
  opacity: 0.7;
}
.action-btn .material-symbols-outlined {
  font-size: 20px;
}

/* Review Section */
.review-tabs {
  display: flex;
  background-color: var(--surface-color);
  border-radius: 24px;
  padding: 4px;
  margin-bottom: var(--spacing-lg);
}
.review-tab {
  flex: 1;
  text-align: center;
  padding: 10px 0;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}
.review-tab.active {
  background-color: var(--white);
  color: var(--text-primary);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.review-empty {
  text-align: center;
  padding: 32px 0;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}
.write-review-btn {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background: white;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-primary);
}

/* ==========================================================================
   Person Detail Page Styles
   ========================================================================== */

/* Person Hero */
.person-hero {
  padding: calc(var(--header-height) + var(--spacing-md)) var(--spacing-md) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.hero-avatar-large {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: var(--spacing-md);
  background-color: var(--surface-color);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.person-hero-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.person-hero-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.4;
  max-width: 80%;
}

/* Person Meta Card */
.person-meta-card {
  background-color: var(--surface-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  row-gap: 20px;
  column-gap: 16px;
  margin: 0 var(--spacing-md) var(--spacing-lg);
}

/* Keyword Chips */
.keyword-chip-container {
  grid-column: span 2;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}
.keyword-chip {
  padding: 4px 12px;
  background-color: var(--white);
  border-radius: 12px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

/* Follow Action Bar (Bottom Fixed CTA) */
.follow-action-bar {
  position: fixed;
  bottom: calc(var(--nav-height) + env(safe-area-inset-bottom, 0px));
  width: 100%;
  max-width: 480px;
  background: linear-gradient(to top, rgba(255,255,255,1) 70%, rgba(255,255,255,0));
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 45; /* Under bottom tab, over content */
}
.btn-follow {
  width: 100%;
  background-color: #111;
  color: #fff;
  padding: 16px 0;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background-color 0.2s;
}
.btn-follow:active {
  background-color: #333;
}
.btn-follow.following {
  background-color: var(--surface-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.follow-caption {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-align: center;
}

/* Helper to lift content above follow bar */
.bottom-spacer-large {
  height: calc(var(--nav-height) + env(safe-area-inset-bottom, 20px) + 120px);
}

/* ==========================================================================
   Library Page Styles
   ========================================================================== */

/* Library Header */
.library-header {
  padding: calc(var(--header-height) + var(--spacing-sm)) var(--spacing-md) var(--spacing-lg);
}
.library-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Text-based Tab Bar (Library Tab) */
.library-tab-bar {
  display: flex;
  padding: 0 var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--border-color);
}
.lib-tab {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-tertiary);
  cursor: pointer;
  position: relative;
  transition: color 0.2s ease;
}
.lib-tab.active {
  color: var(--text-primary);
}
.lib-tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
}

/* Tab Content Areas */
.lib-tab-content {
  display: none;
  padding: 0 var(--spacing-md);
  animation: fadeIn 0.2s ease;
}
.lib-tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Bookmark Saved State Override */
.bookmark-btn.saved-state {
  background-color: #f44336; /* 붉은색 배치 */
  color: #fff;
}
.bookmark-btn.saved-state:hover, .bookmark-btn.saved-state:active {
  background-color: #d32f2f;
}

/* Folder UI */
.folder-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: var(--spacing-md);
  background-color: var(--surface-color);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-lg);
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 500;
}
.folder-header .material-symbols-outlined {
  color: #f44336; /* 폴더 아이콘 또는 새 폴더 아이콘 포인트 컬러 */
}

/* Folder Creation Form */
.folder-input-form {
  display: none;
  background-color: var(--surface-color);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-lg);
}
.folder-input-form.active {
  display: flex;
  align-items: center;
  gap: 8px;
}
.folder-input-form input {
  flex: 1;
  border: 1px solid var(--border-color);
  background-color: var(--white);
  padding: 10px 14px;
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
  outline: none;
}
.folder-create-btn {
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  padding: 10px 16px;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  cursor: pointer;
}
.folder-cancel-btn {
  background-color: transparent;
  color: var(--text-tertiary);
  border: none;
  padding: 10px 12px;
  font-weight: 500;
  cursor: pointer;
}

/* Folder List Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-tertiary);
  font-size: 0.9375rem;
}

/* ==========================================================================
   Search Page Styles
   ========================================================================== */

/* Search Header */
.search-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--white);
  padding: calc(var(--header-height) + var(--spacing-sm)) var(--spacing-md) var(--spacing-sm);
}
.search-input-wrapper {
  position: relative;
  width: 100%;
}
.search-input-wrapper .material-symbols-outlined {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  font-size: 1.25rem;
}
.search-input {
  width: 100%;
  padding: 12px 16px 12px 40px;
  border-radius: 20px;
  border: 1px solid rgba(255, 105, 135, 0.3); /* 연한 핑크 테두리 */
  background-color: var(--white);
  font-size: 0.9375rem;
  color: var(--text-primary);
  outline: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.02);
  transition: all 0.2s ease;
}
.search-input:focus {
  border-color: rgba(255, 105, 135, 0.8);
  box-shadow: 0 4px 12px rgba(255, 105, 135, 0.1);
}

/* Category Grid (맥락으로 탐색) */
.category-explore-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}
.explore-chip {
  padding: 8px 14px;
  background-color: var(--surface-color);
  color: var(--text-secondary);
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
}
.explore-chip:hover {
  background-color: #eee;
}

/* Section Title overriding for Search */
.search-section-title {
  font-size: 0.9375rem;
  color: var(--text-tertiary);
  margin: 0 var(--spacing-md) var(--spacing-md);
  font-weight: 600;
}

/* Trending Books / People Section Spacing */
.search-trending-section {
  margin-bottom: var(--spacing-xl);
}
.search-horizontal-scroll {
  display: flex;
  overflow-x: auto;
  gap: var(--spacing-md);
  padding: 0 var(--spacing-md) var(--spacing-sm);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.search-horizontal-scroll::-webkit-scrollbar {
  display: none;
}
.search-book-card {
  flex: 0 0 120px; 
}
.search-book-card .cover-image {
  height: 160px;
  border-radius: var(--border-radius-md);
}

/* Flow Feed Section (지식의 흐름) */
.flow-feed-container {
  padding: 0 var(--spacing-md) var(--spacing-xl);
}

/* Flow Card Shape */
.flow-card {
  background-color: var(--surface-color);
  border-radius: 24px;
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: relative;
}

/* Base Node Style for Flow Items */
.flow-node {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  cursor: pointer;
  position: relative;
  z-index: 2;
}

/* Subtle Connecting Line */
.flow-line {
  position: relative;
  width: 1px;
  height: 32px;
  background-color: var(--border-color);
  margin-left: 28px; /* 아바타 중앙(56/2)에 맞춤 */
  z-index: 1;
}

/* Flow Person View */
.flow-person-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid rgba(0,0,0,0.05);
}
.flow-text-group {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}
.flow-person-name {
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.flow-person-domain {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Flow Book View */
.flow-book-cover {
  width: 56px;
  height: 80px;
  border-radius: 16px;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}
.flow-book-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.flow-book-author {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

/* Arrow indicator on next person */
.flow-arrow-right {
  color: var(--text-tertiary);
  font-size: 1.2rem;
  margin-left: auto;
}

/* ==========================================================================
   Profile (My Page) Styles
   ========================================================================== */

/* Page Header */
.profile-header {
  padding: calc(var(--header-height) + var(--spacing-sm)) var(--spacing-md) var(--spacing-md);
}
.profile-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Login Card */
.profile-login-card {
  background-color: var(--surface-color);
  border-radius: 16px;
  padding: 32px 24px;
  margin: 0 var(--spacing-md) var(--spacing-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.profile-placeholder-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--background-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: var(--text-tertiary);
}
.profile-placeholder-icon .material-symbols-outlined {
  font-size: 2rem;
}
.profile-login-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 24px;
}
.profile-login-btn {
  background-color: var(--text-primary);
  color: var(--white);
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s ease;
}
.profile-login-btn:hover {
  opacity: 0.8;
}

/* Summary Stats (Grid) */
.profile-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 0 var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}
.stat-card {
  background-color: #F7F7F7;
  border-radius: 12px;
  padding: 16px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.stat-icon {
  color: var(--text-tertiary);
  margin-bottom: 8px;
}
.stat-number {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* Section Title */
.profile-section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 var(--spacing-md) var(--spacing-md);
}

/* Following List */
.following-list-container {
  padding: 0 var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}
.following-list-item {
  background-color: var(--surface-color);
  border-radius: 12px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  margin-bottom: 8px;
}
.following-list-item:last-child {
  margin-bottom: 0;
}
.following-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 12px;
}
.following-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.following-name {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.following-domain {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}
.following-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #f44336; /* 예시의 붉은 계열 따름 */
}
.following-actions .material-symbols-outlined {
  cursor: pointer;
  font-size: 1.2rem;
  opacity: 0.8;
}

/* Settings Item */
.settings-container {
  padding: 0 var(--spacing-md);
}
.setting-item {
  background-color: var(--surface-color);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  align-items: center;
  cursor: pointer;
}
.setting-icon {
  color: var(--text-secondary);
  margin-right: 12px;
}
.setting-label {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
}
.setting-value {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-right: 8px;
}
.setting-arrow {
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
}